45138297 has 8 divisors (see below), whose sum is σ = 62259840. Its totient is φ = 29054480.

The previous prime is 45138287. The next prime is 45138307. The reversal of 45138297 is 79283154.

It is an interprime number because it is at equal distance from previous prime (45138287) and next prime (45138307).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 45138297 - 2¹⁰ = 45137273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45138227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 259329 + ... + 259502.

It is an arithmetic number, because the mean of its divisors is an integer number (7782480).

Almost surely, 2^45138297 is an apocalyptic number.

It is an amenable number.

45138297 is a deficient number, since it is larger than the sum of its proper divisors (17121543).

45138297 is a wasteful number, since it uses less digits than its factorization.

45138297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518863.

The product of its digits is 60480, while the sum is 39.

The square root of 45138297 is about 6718.5040745690. The cubic root of 45138297 is about 356.0533338644.

The spelling of 45138297 in words is "forty-five million, one hundred thirty-eight thousand, two hundred ninety-seven".